Molding-machine.



W. KURZE. MOLDING MACHINE. APPLICAHDN mm sun. 1a. 1912.

1 ,201 ,200. Patented Oct. 10, 1916.

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W. KURZE.

MOLDING MACHINE.

APPLICAHON FILED SUI-18.1912.

901,200. Patented Oct. 10,1916.

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W. KURZE.

MOLDING MACHINE.

APPLICAHON FILED SEPT-18.1912.

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W. KURZE.

V momma mama, APPLICAHQN FILED SEPI- I8. 1912.

1,201,200. Patented Oct. 10, [916;

A T T Y w. KURZE. MOLDING MACHINE. Arru'cmou mp0 SEPI- 18. 19 12.

Patented Oct. 10, 1916.

, IIUHHHI F HI HHH A HQ WILHELM Ko'nzE, F wILHELMsHfirTn, njsvsrmmn-wnn-nonnwennon, GERMANY.

MOLDING-nagging,

Specification Letters Patent, 1 J

Patented Oct. 10, 1916.

Application filed September 18; 1912. Serial in $0,942.

To all whom it may concern:

Be it known that I, \VILHELM Kunzn, a subject of the King of Prussia, residing at \Villielmshiitte, Neustadt on the Rubenberge, near Hanover, Kingdom of Prussia, (leri'nan Empire, have invented certain new and useful Improvements in Molding-Machines, 01"- which the following is specification.

The present invention relates to a traveling molding machine, in which the molding material is forced in known manner by means of compressed air into a mold or a mold flask.

According to the present invention the frame supporting the water tank and the sand container With the mixing nozzle is displaceable on a rail and pivotally suspended, the*sand container allowing oi being separately turned and raised or lowered together with the mixing nozzle. The mixing nozzle can therefore be easily and conveniently moved to any point, so that it will be possible to quickly and conveniently fill all molds and mold flasks in the foundry with the molding material.

In the accompanying drawings, which exemplify constructional forms of the invention,

Figure 1 is a side view of the molding machine according to the present invention, Fig. 2 is a front view and Fig. 3 is a plan of Fig. 1. Fig. 4 is a front view of a modified constructional form of the molding machine; Fig. 5 is a side view and Fig. 6 is a plan ofthe same constructional form ac cording to Fig. 4.

In the several views certain parts are shown in section for the sake of elearness;

With reference to the Figs. 13 in the drawing the molding machine of this constructional form consists essentially of a sand container with the thereto attached mixing nozzle and the water tank required for inoistening the sand. The. said parts are arranged in a frame 42 reinforced by stays. This frame is suspends. from a traveling rail 8. At the upper end of the frame 42 is provided a supporting disk 10 in which the two posts 6 are secured; these posts terminate-in yokes 9. On the pins 12, 12 i011!" naled in the ends of the latter are fitted rollers 7, which travel on the rail 8 having ing spur gears 13 on a shaft 14, This shaft 14 is mounted in bearings, which are fitted in a suitable manner to the said supporting disk 10. The other pair of wheels onthe pins 12 of the yoke 9 is rotatably fitted to the supporting disk 10 so that it is possible for the whole machine to he run through a' curve. i

For moving the frame the following an rangement is provided: On the shaft 14 car' rying the spiu""gears l3 meshing with the spur gears 11 of the one yoke 9, fitted a bevel gear 17-, which meshes with a second bevel gear 17 on a vertical shaftil5, as shown by dotted lines in Figs. 1 and 2. This shaft is journaled in a bearing in the supporting disk 10v At the lower end of this shaft is fitted a gear 18 which meshes with a gear 19 on shaft 16. The shaft 16 extending dowmvard and supported and held in a suitable manner to the frame, can ries at its lower end a gear 20, which meshes with a toothed flange 21 arranged and guided on the sand containerf The gear 20 is feathered to the shaft 16 in such a man nor, that it can be axially displaced thereon for reasons which shall hereinafter be described. The toothed flange i ll'is fitted loose and easily rotatable on the sand container. For the said purpose the toothed flange may for instance be guided by a flanged or U- shaped ring secured to the sand container and balls or the like being arranged between the toothed flange and-said rin for reducing the friction. In the toothed l ange 21 is engaged a pinion 22, which is fitted to the handwheelshaft 23, and this shaft is journaled in a hearing attached to the sand container and carries at its lower end a handwheel 24. It is evident,'that by turning this handwheel 24l'to the one or the other direction the spur gears 13, and therebyalso the spur gears 11 keyed to the shafts 12 with the wheels 7 may be revolved by the aid of the toothed flange and the said gears, so that the machine will travel.

For swiveling and swinging out the machine the follow ng arrangement 18.1))

- videol: The frame has at its upper edge turned toward the rail 8 a number of rollers 30. The supporting disk is bent over in the shape of an U at its edges and thereby forms paths on which the said rollers travel. On the elevator 2, in the lower end of which is arranged a rocking screen 1, are provided hearings, in which. is journaled a shaft 27.

' At the lower end of the same is fitted a bevel gear which meshes with a second bevel gea r 28 on-"theshaft 26; which is rotated by means of a crank handle 25 or the like. a At the np.

perend of theishaft-Q'l'i is'f itted a bevel ,gear

supporting disk 10..

for ned on t tn ning the'crank 25the frame will th re" fore by the aid of. tlie'shaft 27 and the be el gear 29 engaging in. the toothed flange 10 be turned aronnd'the supporting disk 10:

.The raising and lowering of the sand container 3 is effected -by the tiirning of the handwheel 31 whiehis'fitted to zit-shaft 32 At the upper end of the same is fixed a=pinion I-ltwhich engages in'a toothed flange 35 on the sand container. Also this-toothed ifl'an" e 35 is as the above mentionedtoothed flange 2-1 fitted and easily rotatable on the sand container; For this purpose'the same devices as mentioned above. 'may he employed-:Thefsaid toothed flange 35, is in eng'g'igement with a pinion Zlfiwhicliis fitted to the shaft 33. Ihe gear'i-(iis feath ered to the shaft 33-, so thnt 'when the sand container is raised and lowered, by the engagev 'ment of the toothed flange 35 the 'gear.3 6

can slide to,"- iindfro on the shaft 33 without its engagement with the said toothed flange being interrupted. To the loii'er eiidof-the shaft 331is fitted a w orm wheel 37 \vhich'cngages with .a second \vorm' wheel on .a' shaft 38. To the shaft; '38 ;are' keyed. sprocket wheels '39 over which travel linkehairis 4,0.

These'are carried over rollers- -{l '1,;i 1 on the fraine ind serve to sn-ppoitthel' ind com tainer' (see Figs -1 from the aforesaid, thatjtl'ie turn ng of-the liandivheel 31-iiill by means-of tl'i'; toothed flange. 35 a"n'd the gear' 36, tnrn' he. worm heel 37, 'so that in consequence thereof the shin ft '38 1S turned, and the link "chains will he wound-up or unwound. res wctive-ly according to the. direction in which the shaftis turned so that the sand container 'w ll he raised or linvcred, The xvorrxrwhc vl gearingv 37 is'self-locknig, so that the-sand container Will-remain stationary in every position to which its adjusted. For avoiding the disengagement of the toothed flange and the gear 20, "wl1ile the sand container is being raised. or lowered,

the gear 2Q is arranged to slide on the shaft 16 in the atnroilcserihed manner. 'Tlif gear 40 will he (lisplared on this shaft by its enthe sand (ionta'ineris raised or lmrered The water tank required for n'iozstenmg the sand rnwrging frmnthc mixini'nozzin is secured to the frame l-i; 'liic'watei ta (-onnunniimtcs with the mixing nozzle i) means of a ruhlwr lulu,- 43 or the lid-XL F r allowing of completely cutting oll'the' water supply a vain: ll is prm'iilril on the water tank 4.

(-onucrterl to the boss 59 of thr j lilo romprosswl air is suppli -(l' through a 'pipetf, (Fig; 2), and the supply being controlled by meansof a valve fitted with a handwheel 48; The; compressed air is also conducted into the Water tank bv means of a sliort end of the pipe 47 which ii; connected byiineans ofa flexible tube 47 or the like with the \vater tank 4. This affords the advantage, that the avatr will be under. the press'nreof the compressed -air, so thatit a illineet' no resistai ice' \i'hen emerging from the Water nozzie and is the niore easily diffused." In the flexibletube 7 a stop valre '47 is fitted, and besides a gage glass 45 is fitted to the waiter tanl j For filli n, =thetanlc'a connection ipipegtll provided \vith. valve is'arrnnged on the tanlg; V The operation is as follow s:

The sand is thrown on to the rocking screen, whereupon, after all unseri'iceahle arts ha e been retained by the 'scrcenQit I is conducted to the elevator. The latter will now take the. sand tl'u-oughthe bellows connection .into tlielsand container; 3. where it'passes through the funnel shaped bottom into-the supply pipe 3* and thence ing from the regnlable nndexchangeable water nozzle- ()wmg to the pe'ciiliar .form. of the apparatus the range of 'its' tainei 'wit'hjthe inixing nogzle can,' on the One 'liand,-ibyturning the nam in the above:

described .niann'er around the center" m,

3)' be swung through-a circle, and be is fitted with. its boss 5.) ton shaft SOYTheupper end of-said shaft isthnpled by means of a l'i-evel gcaringoi? thelike to a sccoml shaft to which the driving wheel (3i is secured According to the. draw ng the-lat- -ter is driven by means -of .c anprjcssed air,

although "the wheel may also be driven by any \-."hirh-lea-ds into the coni'eyer tube 58. At the cdgeof tllifll'(l!\0l is pr vided a gutter (33-3. into which a carrier (ll engages. Whirl: I cen dish.

iii'ri 'ilry sand has been thrown on to (he err-ran disli any parts retained by the latter will slip over the edge into the gill: 'cr 1 and then he remover: in .19 carrier into the niixing' nozzle- 5'. Here the mit'- I rial is mo stened by thediil'nsed water emergapplicability is nnlimited. 'The'sand con other silitahlej mim Below the. screen 'disk l" (S prgrided a funnel (32, the lower end of 'over the wheel 82.

64 until they fall out through an opening 65 The conveyor tube 58 discharges into the sand container 3* and the'front end of the conveyer tube is coi'inected to the supply pipe for the compressed air, a valve 6 and a suitable nozzle being provided. The sand which has passed the screen 1" and falls from the funnel 2 into the conveyer tube 58 will ,therefore be carried by the compressed air into the sand container after the valve 66 has been opened. Tlhelower end of the sand container communiatcs by the ii'it'ermediate'fitting 67 with the mixing nozzle 5. The sand is con vcyed from the sand container to the nozzle by the pressure prerailing in the said container, the suction of the mixing nozzle assisting this con veying of the sand.

The raising and lowering and the displacing of the mixing nozzle 5 is efi'ected by means of a trolley68, (see Figs. 5 and (3), which can be operated by means of chains from the place where the nozzle man is standing.

For swinging out the apparatus the following arrangement is provided: On a shaft (39 journaled in'the trolley 68 is fitted a sprocket wheel 70, the operating chain "71 of which hangs down and may be easily seized. At the outer end of the shaft 69 is provided a bevel gear 72 which engages with the toothed flange '73 on the underside of the supporting disk 74. The frame in this constructional form is provided with four rollers 75 f engaging a circular rail '76 formed on the supporting, disk. The latter is suspended from the traveling rail. By pulling the chain 71, the wheel. 72 will be turned by the shaft 69 and the apparatus will be swung out.-

The mixing nozzle is raised and lowered by means of a chain wheel Ti, over which an operating chain 78 ispassed. To the shaftof the sprocket wheel 77 are fitted the rope pulleys '79 (Figs. 4 and (3') overwhich run ropes or chains, which support the mix-- ing nozzle. The weight of the mixing nozzle is balanced by a counterpoise 81 fitted to the roller 80. 4

For traveling the apparatus back and forward a sprocket wheel 82 is fitted to the shaft 83, Fig. 6 and a chain Ed is passed To the outer endv of the shaft 83 is fitted a gear wheel 85 which meshes with a gear wheel 86 on shaft To the other end of the said shaft, Fig. 5,

is fitted a' bevel gear 88, which meshes with a corresponding bevel gear 89 on the shaft 90. By means of another bevel gearing the shaft 90 drives the horizontal shaft 91, Fig. 5, to which are fitted two gear wheels 92. .T he latter engage with the gears 93, which drive the wheels 94 of-the one post 6.

For horizontally displacing the mixing nozzle a wheel 96, (Figs. 5 and 6,) rotated by means of a chain 95; the said wheel being fitted on a shaft 97. To this shaft is also fitted the one pair of wheels of the trolley. 'hen the wheel'96 is turned, also the trolley and with. it the mixing nozzle will be displaced. For avoiding all damage to the connecting piece 6'? and the tube 98 for the compressed air supply while the mixing nozzle is being displaced, the said parts are carried over a roller 99. This roller is fitted to an arm 100, which is pivotally fitted to the sand container. A yoke coupled to the pin of the said roller is connected with a rope or the like which runs over roller 101 on the frame and carries at its free end a weight 102, which has the object to counterbalance the connecting piece 67 and the tube 98. The tube 103 for supplying the compressed air branched at its lower end, and to this branch is fitted the aforementioned valve 66 with a nozzle, in order to force the sand from the conveyer pipe into the container. To the upper end is attached an arm 105 having a valve 104, through which the compressed air is conducted to the driving wheel 61 for the screening arrangement. The other arm 106 is connected by means of the above mentioned connecting tube 98 to the mixing nozzle ii. The water tank 4 which may also be fitted, with a level gage, communicates by means of a fieXible tube 107 or the like with the lower part of the mixing nozzle.

I claim:

1. In a molding machine of the character described, in combination, a track rail, a frame supported thereon and carrying a water tank, a sand container and a mixing nozzleoperatively connected to said tank and to said container, and means for moving said frame along'said track rail.

In a molding machine of the character described, in combination, a track rail, a frame supported thereon and carrying a water tank, a sand container and a mixing nozzle operatively connected to said tankand to said container, and means for rotating said frame.

3. In a molding machine of the character described, in combination, a track rail, a frame supported thereon and carrying a water tank, a sand container and a mixing nozzle operatively connected to said tank and to said container, means for rotating said frame, and means for moving said frame along said track rail.

4. In a molding machine of the character described, in combination. a track rail,a disk provided with wheels engaging said rail, said disk being provided with a path or track, a frame, and wheels carried by said frame and engaging said path or track, whereby said frame is rotatably supported by said disk.

5. In a molding machine of the character described, in combination, a track rail, a

disk provided with wheels engaging said rail, said disk being provided with annularly arranged teeth, said disk being provided with a path or track, a frame, Wheels carried by said frame and engaging said patlror track, whereby said frame 1s rotatably sup-'- ported by said clisk,"'and means carried by said frame and engaging said teeth for rotating said frame relatively to said disk.

6. In a molding machine of the, character described, in combination, a track rail, a frame, wheels operatively connected to said frame and engaging said rail whereby said frame maybe moved there along, gear-wheels carried by the axles of said Wheels and rotatable therewith. and means operatively connected to said frame and engaging said gear wheels for causing said frame to travel on said rail.

7. In a molding machine of the character described, in combination, a track rail, a frame movably supported thereon, a sand container supported on said frame, and means for raising and lowering said con tainer relatively to said frame.

8. In a molding machine, in combination, a frame, a sand container and a water tank supported on said frame, mixing nozzle operatively associated withsaid water tank and said sand container, and means for raising' and lowering said nozzle relatively to said frame.

In testimony whereof I have afiixed my signature in presence of two witnesses.

WVILHELM KURZF. Vitnesses: v

T. HENDY REED,

' MINNER CAssEL. 

